Concise hierarchy

(Kingdom) Animalia - (Phylum) Chordata - (Class) Mammalia - (Order) Pilosa

Subsequent positions

Megatherioidea (Superfamily) Gray, 1821

Original entries

Questionably †Imagocnus (Genus) MacPhee & Iturralde-Vinent, 1994
Questionably Megalonychinae (Subfamily) Gervais, 1855

Subsequent entries

Choloepinae (Subfamily) Gray, 1871		Ref: 1985 [assumed]
Ortotheriinae (Subfamily) Ameghino, 1889

Current position

Megatherioidea (Superfamily) Gray, 1821

Ref: M.C. McKenna & S.K. Bell, 1997: 99.

Alternative positions

Folivora (Suborder) Delsuc, Catzeflis, Stanhope & Douzery, 2001	Ref: C.J. Burgin et al., 2020: table 2 (p. 26).
Megalonychoidea (Superfamily)	Ref: R.L. Carroll, 1988: 647.
Megatheria (Parvorder) McKenna & Bell, 1997	Ref: K.D. Rose et al., 2005: table 8.1.
Pilosa (Order) Flower, 1883	Ref: M.J. Benton, 2015: 443.
Xenarthra (Order) Cope, 1889	Ref: A.L. Gardner, 1993: 63.

Historical positions

Folivora (Suborder) Delsuc, Catzeflis, Stanhope & Douzery, 2001	Ref: C.J. Burgin et al., 2020: table 2 (p. 26).
Pilosa (Order) Flower, 1883	Ref: M.J. Benton, 2015: 443.
Folivora (Suborder) Delsuc, Catzeflis, Stanhope & Douzery, 2001	Ref: D.E. Wilson & D.M. Reeder, 2011: 57.
Pilosa (Order) Flower, 1883	Ref: M.J. Benton, 2005: 401.
Megatheria (Parvorder) McKenna & Bell, 1997	Ref: K.D. Rose et al., 2005: table 8.1.
Folivora (Suborder) Delsuc, Catzeflis, Stanhope & Douzery, 2001	Ref: A.L. Gardner, 2005: 101.
Megatherioidea (Superfamily) Gray, 1821	Ref: M.C. McKenna & S.K. Bell, 1997: 99.
Edentata (Order) Vicq-d'Azyr, 1792	Ref: 1995
Xenarthra (Order) Cope, 1889	Ref: A.L. Gardner, 1993: 63; 4.
Xenarthra (Order) Cope, 1889	Ref: G.B. Corbet & J.E. Hill, 1991: 23.
Megalonychoidea (Superfamily)	Ref: R.L. Carroll, 1988: 647.

Number of Subtaxa

2024	Available in Systema Naturae 2000	1g;2s;5ss; ‡2g; †25g;2s
1989-present	Systema Naturae 2000	1g;2s;5ss; ‡2g; †25g
2011	D.E. Wilson & D.M. Reeder: 57	1g;2s
2005	A.L. Gardner	[1g;2s;5ss]
1997	M.C. McKenna & S.K. Bell	[1g; ‡2g; †25g]
1993	A.L. Gardner	1g;2s; †~12g
1991	G.B. Corbet & J.E. Hill	[1g];2s